Re: [Perfparse-users] perfparsed & CPU usage

[Yves M. <yme...@li...>]

> Hello,
> I configured perfparsed to read from a pipe. (Method 4) (config below)
> I noticed that the CPU usage for perfparse is constantly at > 95% (sse
> part of 'top' output below).
>
> Without perfparsed, top reports 99.7% idle, with perfparsed, it
> reports about 50% idle. I should add that this is a test setup, with
> nagios checking only 60 services every 5 minutes (iow, perfparsed
> takes up a lot of CPU for doing close to nothing)

In perfparse/log_reader.c, we use select(). There is a timeout of one sec=
ond.
On the line with select(), the last argument is "&tm". Could you replace =
it with "NULL"
and test ? There should be no side effect with this change.

> the production setup checks around 600 services, so I'm a little worrie=
d.
>
> Any thoughts, insights ?

If it is not a bad use of select(), I have no idea. Give us more, with fo=
r example using
strace (linux) or truss (solaris).


Yves

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